Thank you all. I have around 2 months to submit the RFE. We talked with the attorney's that has applied waivers before, but their main focus is on Employment based Green card. I am in dilemma whether I have to go with specialized attorney of I-601 cases or will the general attorney should be fine. If anyone share the attorney with positive experiences will help me a lot. We will try reach to setup consultation with them. I realized these are complex cases to get approvals.